Jenny wants to determine if a new brand name washing detergent is better than her old detergent she washed ten dirty t-shirts with the new washing detergent and ten dirty t-shirts with the old detergent identify the dependent and independent variables for this experiment
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Answer:
Independent variable: washer detergent
Dependent varaible: cleaing power of effectivenes of the detergent.
Explanation:
When an experiiment is performed there exists one independent variable, one dependent variable, and some other variables that must be controlled.
The goal of the experiment is to test a hypothesis, which is a statement that relates an effect with a cause and that must be proved true or false.
The effect in the dependent variable, and the cause is the independent variable.
Jenny (the scientist) wants to show how an effect or phenomenun, the dependent variable, is explained by the explanatory, independent, variable.
In the stated experiment, Jenny wants to know how the effectiveness of a new brand detergent and an old one compare with each other. Therefore, she designs a test in which she will determine how the brand of detergent may explain (explanatory or independent variable) the cleaning power or effectiveness, the dependent variable.
Jenny only can manipulate the independent variable and observe the effect on the dependent variable.
To be conclusive, other variables must be controlled, like the fabric and the amount of dirt of the t-shirts.
Related Questions
A box measures 20cm by 10cm by 5cm
Compare relative age with absolute age.
In what way does varying the length of a string of a violin change the vibration and how does this affect the sound that's produced?
While digging in the backyard, you find an old coin. It’s mass is 26.76 g and it’s volume is 3 cm . What is the density?
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Hi Kayla
Examples are ;
1) Gymnosperms
2) Angiosperms
Hint; Gymnosperms create cones to house their seeds
Angiosperms; Create their seeds inside fruits
I hope that's help:0
oxygen
bromine
silver
Answers
Answer: Option (d) is the correct answer.
Explanation:
As it is known that density is the amount of mass divided by the volume.
Mathematically, Density =
Since, mass is directly proportional to density. Hence, more is the mass of an object more will be its density.
At room temperature chlorine exists as a gas and its molar mass is 35 g/mol.
At room temperature oxygen exists as a gas and its molar mass is 32 g/mol.
At room temperature bromine exists as a liquid and its molar mass is 80 g/mol.
At room temperature silver exists as a solid and its molar mass is 108 g/mol.
As the mass of silver is greater and it exists as a solid at room temperature. Hence, it will be most dense in nature.
Therefore, we can conclude that out of the given options silver substance is most likely the most dense.
Answers
Final answer:
Carbohydrates, in particular, glucose, are broken down during cellular respiration to produce ATP, carbon dioxide, and water. This process consists of three stages: glycolysis, the citric acid cycle, and electron transport phosphorylation.
Explanation:
During the process of cellular respiration, carbohydrates—specifically glucose, which is a simple sugar—are broken down to produce energy in the form of ATP (adenosine triphosphate). This is a vital process carried out by all living organisms.
This complex process happens in three distinct stages: glycolysis, the citric acid cycle also referred to as the Krebs cycle, and electron transport phosphorylation also known as oxidative phosphorylation.
First, during glycolysis, one molecule of glucose gets broken down into two molecules of pyruvic acid and there is a net output of two ATP molecules. Next, the two molecules of pyruvic acid go through the citric acid cycle where they are oxidized to form carbon dioxide. Finally, during the electron transport chain, electrons are transferred through a series of proteins leading to the creation of water and producing a large amount of ATP.
Overall, the byproducts of this process are carbon dioxide and water, which are released as waste products.
Learn more about cellular respiration here:
#SPJ6
b. 30 to 60 years
c. 60 to 120 years
d. 150 to 500 years
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Conduction is the heat transfer by contact, immediate contact.
Convection is the transfer of heat through air and water.
Radiation is the transfer of heat regardless of the presence of atoms or particles.
Answer:
Well since this question was asked years ago, I do believe that there is more solar energy at the equater and less at the poles.
Explanation:
2.Chemical energy is converted to mechanical energy.
3. Chemical energy is converted to heat energy.
4. Chemical energy is converted to mechanical and kinetic energy.
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the correct answer is 1. Chemical energy is converted to mechanical and heat energy.
When the boy eats apple, the chemical energy of the apple first converted in the heat energy in the process of digestion, which maintains our body temperature, than the body of the boy converts the heat energy into mechanical energy.
Therefore the correct option is 1.
Answer:
Chemical energy is converted to mechanical and heat energy.
Explanation: